More is always better, right?
About 10,000 years ago, humans took a step that changed our
dietary future forever: We made the
transition from hunter-gather subsistence toward horticulture and then
agriculture.
It is interesting to imagine the process involved in taking
that step. What led our ancestors to
begin the process of intentionally planting seeds in the ground for the purpose
of harvesting, instead of just collecting as they grew naturally? What inspired them to take wild animals,
collect them in some fashion to control their wanderings to use them for
sustenance? Was the first animal used
for meat or for milk or even for their pelts, or perhaps for protection?
It is useful to consider possible scenarios that might have led to the
rise of pastoralism, horticultural and agriculture as it tells us a lot of the
mentality and adaptive forces of those ancestors. Consider this question: What were our ancestors thinking when they
chose to change how they obtained the food resources their families needed to
survive?
Regardless of how it happened, that single step opened up
doorways to humans that otherwise probably never would have been available to
them. Consider the benefits of adopting
agriculture to our human ancestors:
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| Fields of grain |
Surplus: Agriculture
(and horticulture/pastoralism) produces more food than a hunter-gatherer
approach. This allows for storage of
food to guard against times when food is scarce.
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| Blacksmith |
Specialization: With a
larger quantity of food produced by a smaller group of people, this opens up
the opportunity for others to do something besides food production, activities
such as tool production, making pottery, creating clothing, processing
harvested grain, baking, butchering… the list goes on and on.
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| Trade Market |
Trade: With some people
producing excess food and other producing goods, agriculture opens up the
possibility of trade, which eventually resulted in a monetary economic system.
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| Banaue Village |
Sedentary residence patterns:
When your food doesn’t move, then you don’t have to either. People can settle in one location and build
more permanent structures. Combined with
specialization and trade, this led to the establishment of villages, then
towns, and finally city centers.
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| Greek Acropolis |
The Benefits of City-States:
Centralized governments, education, organized religion, art,
science, trade with other city-states, the flow of new techniques, new tools
and new ideas.
All of this is tied directly with the advent of
food-production techniques. The reason
you are taking this course, using a computer, listening to music, watching a
movie, voting, driving a car, and thinking about a new phone upgrade is because
of agriculture. No kidding.
So agricultural is wonderful. It must be the best option for humanity when it comes to subsistence patterns. It must provide the most reliable and healthiest option for our dietary needs, right?
Right?
There is an article available for you to read in
the Canvas Course Resources module (The Worst Mistake in the History of the Human Race by Jared Diamond) which challenges this very question. I encourage you to take the time to read it
as it takes the common assumption that agriculture is “best” compared with
other subsistence patterns and asks the question, “Best for what?”
Comparative studies have been conducted comparing the health
of traditional hunter-gatherer populations with that of agricultural
populations. They have compared such
measures as nutritional deficiencies, dental disease, and incidences of
famine. In every category, agriculture
was on the losing side of the study.
Agricultural populations are more likely to have vitamin and nutritional
deficiencies. Why? Because their diet is much less diverse than
that of hunter-gatherer populations, providing fewer food options and therefore
increasing the likelihood that the diet will be missing needed nutritional
building blocks. Agricultural
populations tend to have greater incidences of dental disease, following not
just a higher concentration of high sugar fruits and other food stuffs, but
more processed grains and starches that can also make dental health harder to
maintain. Perhaps the greatest surprise
was the higher incidence of famine. Isn’t that
what agricultural surplus supposed to prevent?
But agricultural populations can become highly dependent upon a limited
number of crops. If those fail, their
fallback options are few and they have lost many of their traditional gathering
skills and sources that would allow them to temporarily adapt until the crops
recover. Hunter-gatherer are susceptible
to dry periods, but they are much more adaptable and highly mobile, allowing
them to adjust their diet to whatever is available and also traveling to wherever
the food happens to be.
This raises an interesting question: Do our cultural (and physical) adaptations exist
because they benefit a population in general, regardless of how long ago the adaptations arose?
Or do these adaptations exist because they benefit a population right at
the very moment the practices arose? Another way of asking
this problem is this: Do the adaptive
processes that produce our traits and behaviors, both biological and cultural
evolution, produce traits that think long term into the future, resulting in
traits that will provide long-term benefits, or do they only produce immediate
benefits?
If any of you are familiar with Richard Dawkin’s book, The Blind Watchmaker, you might be
familiar with the idea of evolution (again, both physical and cultural) as a blind,
tinkering watchmaker. The watchmaker
(representing evolutionary processes) can’t look into the future to figure out
what would be best for an organism millions of years from now, but he does work
with the materials he has to produce traits that work right now in the
immediate present. These adaptive
processes can’t plan ahead. They can’t
plan at all. They aren’t alive. They aren’t conscious. They don’t make intentional “decisions”. The adaptations these processes produce exist
not because there has been an intentional calculation made to make sure they
are the “best”. They are simply those
that leave behind the most individuals that possess or practice and pass on
those traits.
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| No comment |
The result is a behavioral practice just like
agriculture. By practicing agriculture,
you can produce and support a larger population who will survive and continue
to practice agriculture. That doesn’t
rule out complications or downsides sometime in the future. That doesn’t mean those populations will all
be healthier, have fewer cavities and never starve. All that matters is how many people practices
and pass on this pattern of subsistence.
It’s literally the domination of overwhelming quantity over ideal quality.
This is probably a very new idea for many of you, the concept that the traits we practice now don’t have to be the best for us, they just happen to be very good at being practiced by a larger number of people some time in our human evolutionary history. Think about how few people cut back on fats and sugars. That would make us healthier and be a better behavior for us to practice, right? So why do most of us crave fats and sugars and all of those things that are so bad for us? Because in our evolutionary history, those who ate well when food was readily available would be more likely to survive when there wasn’t enough, as there was sure to be. It’s feast or famine. Did our dietary preferences evolve to plan for the days when food would always be readily available for anyone who could walk into your corner McDonald’s and order 2000 calories of food for a few dollars? No, it did not occur with any foresight to the future at all. Unfortunately, we are stuck in modern times with modern food supplies coupled with our prehistoric appetites.
So here is the question for you to consider: I’ve highlighted a very few specific downsides to agriculture, but there are many more to consider.
- What are some modern problems that have arisen that can be traced to our adoption of agriculture 10,000 years ago? Post a comment for this discussion that outlines a downside of agriculture, identifying how this downside was originally produced as the result of some type of benefit to human populations and how it has become not so beneficial now. These downsides could relate to our biology, our diet, our social patterns, our economic patterns, and our natural environment. I am sure there are more categories than this, so don’t limit yourself. You just need to try to understand why the adaptation existed in the first place and what happened to produce the downside. This first comment is worth 5 bonus points.
- If you want to earn an additional 5 points, post a response to another student’s comment. This can be supportive or you can challenge their line of thinking with an alternative view.
















